Improvement in gbain deills



P ,& P. J. SCHMITT.

Seed Dropper.

Patented Feb. 5,: 1867.

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N-PETERS. PNOTG-LITNOGRA NFJL WASHINGTON, 0, G.

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Letters Patent No. 61,879, dated February 5, 1867.

IMPROVEMENT IN GRAIN DRILLS.

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Be it known that we, Parse Scnmrr and'Pnrnn JACOB Scmnrr, of Waterloo,in the county of Monroe,

and State of Illinois, have invented anew and improved Grain Drill; andwe do hereby'declare that the'fob lotwing is a full, clear, and exactdescription thereof, which will enable others skilled in the art to makeand use the same, reference being had to the accompanyingdrawings,'forming part of this specification.

This invention relates to certain improvements on our grain drill,Letters Patent for which were granted to us on the 24th day of April,1866.

The improvements consist in the construction and arrangement of thelongitudinal shaft which is placed into the seed-box, said shaft beingprovided with blocks by which the holes in the bottom of the seed-boxare alternately closed and opened, whereby the feed is made regular andequal, and is not afi'ected by the jars and jolts of themachine. To eachof these blocks are secured one or more metal pins, whereby the grain iswell 1 1 stirred and fed to the seed-holes, and whereby the latter arealso kept clear from obstructions. The crank or q arm, which is attachedto one end of this feed-bar, and which is connected by a pitman with acrank on a shaftl 1 i that gears into a toothed wheel on the axle of themachine, is slotted, so that the said pitman may be secured: furtherfrom or nearer to the feed-bar, thus increasing or reducing the motionof the said feed-bar as may'be. desired. Underneath the seed-box, andconnected with the lower slide-bar, we have arranged a lever, whichis,

at its end, provided with a slot, wherein the lever of the shoe-liftingbar works, so thatas the shoes are lowered the said level will close theseed-holes automatically, and vice versa. The upper seed-slide only isconnected a by a lever to the horizontal wheel; the latter is nowoperated by hand, riot automatically, as in our first patent;

The wheel is connected with a pointer working over a graduated index,whereby the amount to be sown may i be regulated with accuracy. Aset-screw serves to secure the wheel in any desired position after thefeed-holes;

are regulated. In the annexcddrawings, our improvements aredesignated--- Figure 1 being a vertical longitudinal section of theseed-box, taken on the line a: :v, fig. 2. Figure 2 is a bottomplaneview of the same.

Figure 3 is a vertical cross-section of the same, taken on the line 3/y, fig. 1.

Figure 4 is a portion of a side elevation of the same. 7

Figure 5 is a ,detail horizontal sectional view, taken in the line .2 z,fig. 3.

Figure dis a detail side view of the slotted arm or crank, which isattached to one end of the seed-bar. Similar letters of'rcferenceindicate like parts.

The seed-box A, which is constructed as described in our first patent,and which is secured to asiniilar frame, as therein set forth, by meansof upright standards G, is provided with a perforated bottom, it, belowwhich two bars B C are placed, one above the other, each perforated withholes, 6, and each extending from end to end of the seed-box. The upperbar B has a lever c secured to it, which is provided with a verticalpin, d; the latter is fitted in a slot cut into a horizontal wheel, f,which is pivoted to an arm, 9, extending from the bottom of theseed-box. The wheel f is provided with a handle, it, so that by turningit by hand the seed hbles may he more or less opened. A rod, 2', extendsfrom the wheelfto a hand or pointer, z", to which it is attached belowits pivoting point, as seen in fig. 4. The hand 2" is pivoted to theside of the seed-box, and as the wheel f is turned the hand willpoint toa graduated index, 2", which is also secured to the seed-box, asseen infig. 4:. The flow of the grain from the seed-box is automaticallystopped or started by means of a lever, K, which is attached to theunder side of the seed-box, (see fig. 2,) and which is provided with anoblong slot, K, at its inner end, which fits around a pin, a, on thelower bar C. The outer end I of the lever K is also slotted, as shown infig. 2. This slotted end K is secured by ajoint to the shoe-lifting barin a-similar manner,

.as shown in our former Letters Patent. A thumb-screw, Z, which issecured to the arm g, and passes through a circular slot, m, in thewhcelf, serves to secure thatwhecl, and with it the upper bar 13, in anydesired position. Above each hole in the bottom of the seed-box A issecured to the shaft D, which is placed longitudinally within the saidseed-box, a block, a, which may be made of metal or wood, as desired. Toeach block or valve or is secured a pin, a, which is made of steel orother suitable metal, and which acts as a stirrer, as before set forth.More than one pin 0 may be attached to each block or valve 11. The crankor arm 10, which is attached to the end of the bar D, as seen in fig. 1,is provided with an oblong slot, as shown in fig. 6, for the purpose ofregulating the motion of the bar D, as set forth.

Having thus described our invention,;what we claim as new, and desire tosecure by'Letters Patent, is- 1. The metal or wooden blocks or valves n,which are secured to the feed-bar D, and the pins 0, which are attachedto the blocks 72, substantially sis and for the purpose herein shown anddescribed.

2. The slotted crankp of the feed-bar D, operating substantially as andfor the purpose herein shown and described.

3. The slotted lever K, which is pivoted to the seed-box A, and wherebythe flow of the seed may be automatically regulated, substantially asherein shown and described.

4. The thumb-screw l, in combination with the slot m in the wheelf, forthe purpose of securing the bar B in any desired position, substantiallyas herein shown and described.

5. The hand 2" and index i, in combination with the rod 1', wheelf, andhandle it, all made and operating substantially as herein'shown anddescribed.

PETER SGHMITT, PETER J. SCHMITT.

Witnesses CHARLES HENcKLnn, PHILIPP PALM.

